1/***********************************************************
2
3Copyright 1987, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25
26Copyright 1987 by Digital Equipment Corporation, Maynard, Massachusetts.
27
28                        All Rights Reserved
29
30Permission to use, copy, modify, and distribute this software and its
31documentation for any purpose and without fee is hereby granted,
32provided that the above copyright notice appear in all copies and that
33both that copyright notice and this permission notice appear in
34supporting documentation, and that the name of Digital not be
35used in advertising or publicity pertaining to distribution of the
36software without specific, written prior permission.
37
38DIGITAL DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
39ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
40DIGITAL BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
41ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
42WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
43ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
44SOFTWARE.
45
46******************************************************************/
47
48#ifndef PIXMAP_H
49#define PIXMAP_H
50
51#include "misc.h"
52#include "screenint.h"
53
54/* types for Drawable */
55#define DRAWABLE_WINDOW 0
56#define DRAWABLE_PIXMAP 1
57#define UNDRAWABLE_WINDOW 2
58
59/* corresponding type masks for dixLookupDrawable() */
60#define M_DRAWABLE_WINDOW	(1<<0)
61#define M_DRAWABLE_PIXMAP	(1<<1)
62#define M_UNDRAWABLE_WINDOW	(1<<2)
63#define M_ANY			(-1)
64#define M_WINDOW	(M_DRAWABLE_WINDOW|M_UNDRAWABLE_WINDOW)
65#define M_DRAWABLE	(M_DRAWABLE_WINDOW|M_DRAWABLE_PIXMAP)
66#define M_UNDRAWABLE	(M_UNDRAWABLE_WINDOW)
67
68/* flags to PaintWindow() */
69#define PW_BACKGROUND 0
70#define PW_BORDER 1
71
72#define NullPixmap ((PixmapPtr)0)
73
74typedef struct _Drawable *DrawablePtr;
75typedef struct _Pixmap *PixmapPtr;
76
77typedef union _PixUnion {
78    PixmapPtr		pixmap;
79    unsigned long	pixel;
80} PixUnion;
81
82#define SamePixUnion(a,b,isPixel)\
83    ((isPixel) ? (a).pixel == (b).pixel : (a).pixmap == (b).pixmap)
84
85#define EqualPixUnion(as, a, bs, b)				\
86    ((as) == (bs) && (SamePixUnion (a, b, as)))
87
88#define OnScreenDrawable(type) \
89	(type == DRAWABLE_WINDOW)
90
91#define WindowDrawable(type) \
92	((type == DRAWABLE_WINDOW) || (type == UNDRAWABLE_WINDOW))
93
94extern _X_EXPORT PixmapPtr GetScratchPixmapHeader(
95    ScreenPtr /*pScreen*/,
96    int /*width*/,
97    int /*height*/,
98    int /*depth*/,
99    int /*bitsPerPixel*/,
100    int /*devKind*/,
101    pointer /*pPixData*/);
102
103extern _X_EXPORT void FreeScratchPixmapHeader(
104    PixmapPtr /*pPixmap*/);
105
106extern _X_EXPORT Bool CreateScratchPixmapsForScreen(
107    int /*scrnum*/);
108
109extern _X_EXPORT void FreeScratchPixmapsForScreen(
110    int /*scrnum*/);
111
112extern _X_EXPORT PixmapPtr AllocatePixmap(
113    ScreenPtr /*pScreen*/,
114    int /*pixDataSize*/);
115
116extern _X_EXPORT void FreePixmap(
117    PixmapPtr /*pPixmap*/);
118
119#endif /* PIXMAP_H */
120